I've been DE and brush shaving for the better part of a year now. I only get some minor nicks on occasion. I am lucky. I have a short goatee style beard and mustache, so my nose and mouth area is safe.

A new rule I use with any razor is, SHAVE SLOWLY. Slow, careful shaving stops you before nicks turn into cuts.

When I changed from my Gillette tech to the heavy Merkur 38C, I had a couple nicks and some burn the first couple of shaves. Different razors handle differently.